Today I have gone a bit botanic with my Nepenthes (also known as Tropical Pitcher Plants or Monkey Cups, the latter named because monkeys have been seen drinking out of them - I think that is a worthy picture to create in itself).
I think that not only are Haeckels drawings of these stunning, but the plants themselves are madly-beautiful. Big and bulbus and twisted in colour. I love them.
My recreation copy-doodle:
Ernst Haeckel's beautiful illustrated studies: